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2004 Chevy Trailblazer RPM fluctuates

Tiny
TIFFY
  • MEMBER
  • 2004 CHEVROLET TRAILBLAZER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 77,423 MILES
When you drive for a little bit the RPM will jump up to 2 and then go back down til 1.5 while driving. It will do it for a few times and then be akoy for a while and then repeat it again. There is no check engine lights on and all the other guages are reading normal. Please help me narrow it down to a few things. Thanks
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Wednesday, February 4th, 2009 AT 4:53 AM

2 Replies

Tiny
RUTLEDGES5
  • MEMBER
  • 2 POSTS
I see u posted this a long time ago. Just wondering if u ever figured out what was going on with it. My 2005 is doing the same exact thing. As I am driving on a straight road, the rpms jump up and the vehicle revs up and kinda bounces a few times, then goes back to normal. Trying to self diagnose the issue and look at something to fix it, but dont know where to begin. Any advice would be great!
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Monday, January 3rd, 2011 AT 2:48 AM
Tiny
POTOMACCAD
  • MEMBER
  • 1 POST
I would like to know if you have found the problem to your Trailblazer RPM Fluctuations? I have found other people from other auto forum sites owning trailblazers with this same problem. Please feel free to email me direct at potomaccad@gmail. Com I have a 2004 Trailblazer too. Just replaced all the Transmission Solenoid valves and the issue is still happening. Thanks!
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Friday, June 27th, 2014 AT 12:09 PM

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